forked from mirrors/linux
b24413180f
Many source files in the tree are missing licensing information, which makes it harder for compliance tools to determine the correct license. By default all files without license information are under the default license of the kernel, which is GPL version 2. Update the files which contain no license information with the 'GPL-2.0' SPDX license identifier. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. This patch is based on work done by Thomas Gleixner and Kate Stewart and Philippe Ombredanne. How this work was done: Patches were generated and checked against linux-4.14-rc6 for a subset of the use cases: - file had no licensing information it it. - file was a */uapi/* one with no licensing information in it, - file was a */uapi/* one with existing licensing information, Further patches will be generated in subsequent months to fix up cases where non-standard license headers were used, and references to license had to be inferred by heuristics based on keywords. The analysis to determine which SPDX License Identifier to be applied to a file was done in a spreadsheet of side by side results from of the output of two independent scanners (ScanCode & Windriver) producing SPDX tag:value files created by Philippe Ombredanne. Philippe prepared the base worksheet, and did an initial spot review of a few 1000 files. The 4.13 kernel was the starting point of the analysis with 60,537 files assessed. Kate Stewart did a file by file comparison of the scanner results in the spreadsheet to determine which SPDX license identifier(s) to be applied to the file. She confirmed any determination that was not immediately clear with lawyers working with the Linux Foundation. Criteria used to select files for SPDX license identifier tagging was: - Files considered eligible had to be source code files. - Make and config files were included as candidates if they contained >5 lines of source - File already had some variant of a license header in it (even if <5 lines). All documentation files were explicitly excluded. The following heuristics were used to determine which SPDX license identifiers to apply. - when both scanners couldn't find any license traces, file was considered to have no license information in it, and the top level COPYING file license applied. For non */uapi/* files that summary was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 11139 and resulted in the first patch in this series. If that file was a */uapi/* path one, it was "GPL-2.0 WITH Linux-syscall-note" otherwise it was "GPL-2.0". Results of that was: SPDX license identifier # files ---------------------------------------------------|------- GPL-2.0 WITH Linux-syscall-note 930 and resulted in the second patch in this series. - if a file had some form of licensing information in it, and was one of the */uapi/* ones, it was denoted with the Linux-syscall-note if any GPL family license was found in the file or had no licensing in it (per prior point). Results summary: SPDX license identifier # files ---------------------------------------------------|------ GPL-2.0 WITH Linux-syscall-note 270 GPL-2.0+ WITH Linux-syscall-note 169 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause) 21 ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause) 17 LGPL-2.1+ WITH Linux-syscall-note 15 GPL-1.0+ WITH Linux-syscall-note 14 ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause) 5 LGPL-2.0+ WITH Linux-syscall-note 4 LGPL-2.1 WITH Linux-syscall-note 3 ((GPL-2.0 WITH Linux-syscall-note) OR MIT) 3 ((GPL-2.0 WITH Linux-syscall-note) AND MIT) 1 and that resulted in the third patch in this series. - when the two scanners agreed on the detected license(s), that became the concluded license(s). - when there was disagreement between the two scanners (one detected a license but the other didn't, or they both detected different licenses) a manual inspection of the file occurred. - In most cases a manual inspection of the information in the file resulted in a clear resolution of the license that should apply (and which scanner probably needed to revisit its heuristics). - When it was not immediately clear, the license identifier was confirmed with lawyers working with the Linux Foundation. - If there was any question as to the appropriate license identifier, the file was flagged for further research and to be revisited later in time. In total, over 70 hours of logged manual review was done on the spreadsheet to determine the SPDX license identifiers to apply to the source files by Kate, Philippe, Thomas and, in some cases, confirmation by lawyers working with the Linux Foundation. Kate also obtained a third independent scan of the 4.13 code base from FOSSology, and compared selected files where the other two scanners disagreed against that SPDX file, to see if there was new insights. The Windriver scanner is based on an older version of FOSSology in part, so they are related. Thomas did random spot checks in about 500 files from the spreadsheets for the uapi headers and agreed with SPDX license identifier in the files he inspected. For the non-uapi files Thomas did random spot checks in about 15000 files. In initial set of patches against 4.14-rc6, 3 files were found to have copy/paste license identifier errors, and have been fixed to reflect the correct identifier. Additionally Philippe spent 10 hours this week doing a detailed manual inspection and review of the 12,461 patched files from the initial patch version early this week with: - a full scancode scan run, collecting the matched texts, detected license ids and scores - reviewing anything where there was a license detected (about 500+ files) to ensure that the applied SPDX license was correct - reviewing anything where there was no detection but the patch license was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied SPDX license was correct This produced a worksheet with 20 files needing minor correction. This worksheet was then exported into 3 different .csv files for the different types of files to be modified. These .csv files were then reviewed by Greg. Thomas wrote a script to parse the csv files and add the proper SPDX tag to the file, in the format that the file expected. This script was further refined by Greg based on the output to detect more types of files automatically and to distinguish between header and source .c files (which need different comment types.) Finally Greg ran the script using the .csv files to generate the patches. Reviewed-by: Kate Stewart <kstewart@linuxfoundation.org> Reviewed-by: Philippe Ombredanne <pombredanne@nexb.com> Reviewed-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
131 lines
5.4 KiB
C
131 lines
5.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef LINUX_SSB_PCICORE_H_
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#define LINUX_SSB_PCICORE_H_
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#include <linux/types.h>
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struct pci_dev;
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#ifdef CONFIG_SSB_DRIVER_PCICORE
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/* PCI core registers. */
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#define SSB_PCICORE_CTL 0x0000 /* PCI Control */
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#define SSB_PCICORE_CTL_RST_OE 0x00000001 /* PCI_RESET Output Enable */
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#define SSB_PCICORE_CTL_RST 0x00000002 /* PCI_RESET driven out to pin */
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#define SSB_PCICORE_CTL_CLK_OE 0x00000004 /* Clock gate Output Enable */
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#define SSB_PCICORE_CTL_CLK 0x00000008 /* Gate for clock driven out to pin */
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#define SSB_PCICORE_ARBCTL 0x0010 /* PCI Arbiter Control */
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#define SSB_PCICORE_ARBCTL_INTERN 0x00000001 /* Use internal arbiter */
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#define SSB_PCICORE_ARBCTL_EXTERN 0x00000002 /* Use external arbiter */
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#define SSB_PCICORE_ARBCTL_PARKID 0x00000006 /* Mask, selects which agent is parked on an idle bus */
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#define SSB_PCICORE_ARBCTL_PARKID_LAST 0x00000000 /* Last requestor */
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#define SSB_PCICORE_ARBCTL_PARKID_4710 0x00000002 /* 4710 */
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#define SSB_PCICORE_ARBCTL_PARKID_EXT0 0x00000004 /* External requestor 0 */
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#define SSB_PCICORE_ARBCTL_PARKID_EXT1 0x00000006 /* External requestor 1 */
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#define SSB_PCICORE_ISTAT 0x0020 /* Interrupt status */
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#define SSB_PCICORE_ISTAT_INTA 0x00000001 /* PCI INTA# */
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#define SSB_PCICORE_ISTAT_INTB 0x00000002 /* PCI INTB# */
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#define SSB_PCICORE_ISTAT_SERR 0x00000004 /* PCI SERR# (write to clear) */
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#define SSB_PCICORE_ISTAT_PERR 0x00000008 /* PCI PERR# (write to clear) */
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#define SSB_PCICORE_ISTAT_PME 0x00000010 /* PCI PME# */
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#define SSB_PCICORE_IMASK 0x0024 /* Interrupt mask */
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#define SSB_PCICORE_IMASK_INTA 0x00000001 /* PCI INTA# */
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#define SSB_PCICORE_IMASK_INTB 0x00000002 /* PCI INTB# */
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#define SSB_PCICORE_IMASK_SERR 0x00000004 /* PCI SERR# */
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#define SSB_PCICORE_IMASK_PERR 0x00000008 /* PCI PERR# */
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#define SSB_PCICORE_IMASK_PME 0x00000010 /* PCI PME# */
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#define SSB_PCICORE_MBOX 0x0028 /* Backplane to PCI Mailbox */
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#define SSB_PCICORE_MBOX_F0_0 0x00000100 /* PCI function 0, INT 0 */
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#define SSB_PCICORE_MBOX_F0_1 0x00000200 /* PCI function 0, INT 1 */
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#define SSB_PCICORE_MBOX_F1_0 0x00000400 /* PCI function 1, INT 0 */
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#define SSB_PCICORE_MBOX_F1_1 0x00000800 /* PCI function 1, INT 1 */
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#define SSB_PCICORE_MBOX_F2_0 0x00001000 /* PCI function 2, INT 0 */
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#define SSB_PCICORE_MBOX_F2_1 0x00002000 /* PCI function 2, INT 1 */
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#define SSB_PCICORE_MBOX_F3_0 0x00004000 /* PCI function 3, INT 0 */
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#define SSB_PCICORE_MBOX_F3_1 0x00008000 /* PCI function 3, INT 1 */
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#define SSB_PCICORE_BCAST_ADDR 0x0050 /* Backplane Broadcast Address */
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#define SSB_PCICORE_BCAST_ADDR_MASK 0x000000FF
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#define SSB_PCICORE_BCAST_DATA 0x0054 /* Backplane Broadcast Data */
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#define SSB_PCICORE_GPIO_IN 0x0060 /* rev >= 2 only */
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#define SSB_PCICORE_GPIO_OUT 0x0064 /* rev >= 2 only */
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#define SSB_PCICORE_GPIO_ENABLE 0x0068 /* rev >= 2 only */
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#define SSB_PCICORE_GPIO_CTL 0x006C /* rev >= 2 only */
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#define SSB_PCICORE_SBTOPCI0 0x0100 /* Backplane to PCI translation 0 (sbtopci0) */
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#define SSB_PCICORE_SBTOPCI0_MASK 0xFC000000
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#define SSB_PCICORE_SBTOPCI1 0x0104 /* Backplane to PCI translation 1 (sbtopci1) */
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#define SSB_PCICORE_SBTOPCI1_MASK 0xFC000000
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#define SSB_PCICORE_SBTOPCI2 0x0108 /* Backplane to PCI translation 2 (sbtopci2) */
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#define SSB_PCICORE_SBTOPCI2_MASK 0xC0000000
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#define SSB_PCICORE_PCICFG0 0x0400 /* PCI config space 0 (rev >= 8) */
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#define SSB_PCICORE_PCICFG1 0x0500 /* PCI config space 1 (rev >= 8) */
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#define SSB_PCICORE_PCICFG2 0x0600 /* PCI config space 2 (rev >= 8) */
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#define SSB_PCICORE_PCICFG3 0x0700 /* PCI config space 3 (rev >= 8) */
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#define SSB_PCICORE_SPROM(wordoffset) (0x0800 + ((wordoffset) * 2)) /* SPROM shadow area (72 bytes) */
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/* SBtoPCIx */
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#define SSB_PCICORE_SBTOPCI_MEM 0x00000000
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#define SSB_PCICORE_SBTOPCI_IO 0x00000001
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#define SSB_PCICORE_SBTOPCI_CFG0 0x00000002
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#define SSB_PCICORE_SBTOPCI_CFG1 0x00000003
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#define SSB_PCICORE_SBTOPCI_PREF 0x00000004 /* Prefetch enable */
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#define SSB_PCICORE_SBTOPCI_BURST 0x00000008 /* Burst enable */
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#define SSB_PCICORE_SBTOPCI_MRM 0x00000020 /* Memory Read Multiple */
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#define SSB_PCICORE_SBTOPCI_RC 0x00000030 /* Read Command mask (rev >= 11) */
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#define SSB_PCICORE_SBTOPCI_RC_READ 0x00000000 /* Memory read */
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#define SSB_PCICORE_SBTOPCI_RC_READL 0x00000010 /* Memory read line */
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#define SSB_PCICORE_SBTOPCI_RC_READM 0x00000020 /* Memory read multiple */
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/* PCIcore specific boardflags */
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#define SSB_PCICORE_BFL_NOPCI 0x00000400 /* Board leaves PCI floating */
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struct ssb_pcicore {
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struct ssb_device *dev;
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u8 setup_done:1;
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u8 hostmode:1;
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u8 cardbusmode:1;
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};
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extern void ssb_pcicore_init(struct ssb_pcicore *pc);
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/* Enable IRQ routing for a specific device */
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extern int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
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struct ssb_device *dev);
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int ssb_pcicore_plat_dev_init(struct pci_dev *d);
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int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin);
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#else /* CONFIG_SSB_DRIVER_PCICORE */
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struct ssb_pcicore {
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};
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static inline
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void ssb_pcicore_init(struct ssb_pcicore *pc)
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{
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}
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static inline
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int ssb_pcicore_dev_irqvecs_enable(struct ssb_pcicore *pc,
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struct ssb_device *dev)
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{
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return 0;
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}
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static inline
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int ssb_pcicore_plat_dev_init(struct pci_dev *d)
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{
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return -ENODEV;
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}
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static inline
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int ssb_pcicore_pcibios_map_irq(const struct pci_dev *dev, u8 slot, u8 pin)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_SSB_DRIVER_PCICORE */
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#endif /* LINUX_SSB_PCICORE_H_ */
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